There has been a problem that continuous recording of monitoring data may be impeded by inconsistency in setting values, occurring due to changes in settings of an imaging unit or compression encoding unit performed while recording.Provided are a recording source which outputs a stream including compression-encoded video data, instructing means which change a parameter relating to the recording source, according to a command transmitted from an external device connected via a network, and control means which perform control so as to switch whether or not a command by the instructing means as to the recording source correlated with the recording job can be accepted, in accordance with the recording state of the recording job.